/****************************/
/* THIS IS OPEN SOURCE CODE */
/****************************/

/**
 * @file    example_basic.c
 * @author  Vince Weaver
 *	    vweaver1@eecs.utk.edu
 * test case for Example component
 *
 *
 * @brief
 *  This file is a very simple example test and Makefile that acat
 *	as a guideline on how to add tests to components.
 *  The papi configure and papi Makefile will take care of the compilation
 *	of the component tests (if all tests are added to a directory named
 *	'tests' in the specific component dir).
 *	See components/README for more details.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "papi.h"
#include "papi_test.h"

#define NUM_EVENTS 3

int main (int argc, char **argv)
{

        int retval,i;
	int EventSet = PAPI_NULL;
	long long values[NUM_EVENTS];
	const PAPI_component_info_t *cmpinfo = NULL;
	int numcmp,cid,example_cid=-1;
	int code,maximum_code=0;
	char event_name[PAPI_MAX_STR_LEN];
	PAPI_event_info_t event_info;
	int quiet=0;

        /* Set TESTS_QUIET variable */
	quiet=tests_quiet( argc, argv );

	/* PAPI Initialization */
	retval = PAPI_library_init( PAPI_VER_CURRENT );
	if ( retval != PAPI_VER_CURRENT ) {
	   test_fail(__FILE__, __LINE__,"PAPI_library_init failed\n",retval);
	}

	if (!quiet) {
	   printf( "Testing example component with PAPI %d.%d.%d\n",
			PAPI_VERSION_MAJOR( PAPI_VERSION ),
			PAPI_VERSION_MINOR( PAPI_VERSION ),
			PAPI_VERSION_REVISION( PAPI_VERSION ) );
	}

	/* Find our component */

	numcmp = PAPI_num_components();
	for( cid=0; cid<numcmp; cid++) {
	   if ( (cmpinfo = PAPI_get_component_info(cid)) == NULL) {
	      test_fail(__FILE__, __LINE__,
                           "PAPI_get_component_info failed\n", 0);
	   }
	   if (!quiet) {
	      printf("\tComponent %d - %d events - %s\n", cid,
		     cmpinfo->num_native_events,
		     cmpinfo->name);
	   }
	   if (strstr(cmpinfo->name,"example")) {
	      /* FOUND! */
	      example_cid=cid;
	   }
	}


	if (example_cid<0) {
	   test_skip(__FILE__, __LINE__,
		     "Example component not found\n", 0);
	}

	if (!quiet) {
	  printf("\nFound Example Component at id %d\n",example_cid);
	  printf("\nListing all events in this component:\n");
	}

	/**************************************************/
	/* Listing all available events in this component */
	/* Along with descriptions                        */
	/**************************************************/
	code = PAPI_NATIVE_MASK;

	retval = PAPI_enum_cmp_event( &code, PAPI_ENUM_FIRST, example_cid );

	while ( retval == PAPI_OK ) {
	  if (PAPI_event_code_to_name( code, event_name )!=PAPI_OK) {
	     printf("Error translating %#x\n",code);
	     test_fail( __FILE__, __LINE__,
		       "PAPI_event_code_to_name", retval );
	  }

	  if (PAPI_get_event_info( code, &event_info)!=PAPI_OK) {
	     printf("Error getting info for event %#x\n",code);
	     test_fail( __FILE__, __LINE__,
		       "PAPI_get_event_info()", retval );
	  }

	  if (!quiet) {
	    printf("\tEvent %#x: %s -- %s\n",
		   code,event_name,event_info.long_descr);
	  }

	  maximum_code=code;

	  retval = PAPI_enum_cmp_event( &code, PAPI_ENUM_EVENTS, example_cid );

	}
	if (!quiet) printf("\n");

	/**********************************/
	/* Try accessing an invalid event */
	/**********************************/

	retval=PAPI_event_code_to_name( maximum_code+10, event_name );
	if (retval!=PAPI_ENOEVNT) {
	   test_fail( __FILE__, __LINE__,
		    "Failed to return PAPI_ENOEVNT on invalid event", retval );
	}

	/***********************************/
	/* Test the EXAMPLE_ZERO event     */
	/***********************************/

	retval = PAPI_create_eventset( &EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_create_eventset() failed\n", retval );
	}

	retval = PAPI_event_name_to_code("EXAMPLE_ZERO", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_ZERO not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__, 
		      "PAPI_start failed\n",retval );
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}

	if (!quiet) printf("Testing EXAMPLE_ZERO: %lld\n",values[0]);

	if (values[0]!=0) {
	   test_fail(  __FILE__, __LINE__, "Result should be 0!\n", 0);
	}

	retval = PAPI_cleanup_eventset(EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
	}

	retval = PAPI_destroy_eventset(&EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
	}

	EventSet=PAPI_NULL;


	/***********************************/
	/* Test the EXAMPLE_CONSTANT event */
	/***********************************/

	retval = PAPI_create_eventset( &EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_create_eventset() failed\n", retval );
	}

	retval = PAPI_event_name_to_code("EXAMPLE_CONSTANT", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_CONSTANT not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__, 
		      "PAPI_start failed\n",retval );
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}

	if (!quiet) printf("Testing EXAMPLE_CONSTANT: %lld\n",values[0]);

	if (values[0]!=42) {
	   test_fail(  __FILE__, __LINE__, "Result should be 42!\n", 0);
	}

	retval = PAPI_cleanup_eventset(EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
	}

	retval = PAPI_destroy_eventset(&EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
	}

	EventSet=PAPI_NULL;



	/***********************************/
	/* Test the EXAMPLE_AUTOINC event  */
	/***********************************/

	retval = PAPI_create_eventset( &EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_create_eventset() failed\n", retval );
	}

	retval = PAPI_event_name_to_code("EXAMPLE_AUTOINC", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_AUTOINC not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

	if (!quiet) printf("Testing EXAMPLE_AUTOINC: ");

	for(i=0;i<10;i++) {

	   retval = PAPI_start( EventSet );
	   if ( retval != PAPI_OK ) {
	      test_fail( __FILE__, __LINE__,
		      "PAPI_start failed\n",retval );
	   }

	   retval = PAPI_stop( EventSet, values );
	   if ( retval != PAPI_OK ) {
	      test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	   }

	   if (!quiet) printf("%lld ",values[0]);

	   if (values[0]!=i) {
	      test_fail(  __FILE__, __LINE__, "Result wrong!\n", 0);
	   }
	}

	if (!quiet) printf("\n");


	/***********************************/
	/* Test multiple reads             */
        /***********************************/

	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_start failed\n",retval );
	}

	for(i=0;i<10;i++) {

	  retval=PAPI_read( EventSet, values);
	  if ( retval != PAPI_OK ) {
	     test_fail(  __FILE__, __LINE__, "PAPI_read failed\n", retval);
	  }
	  if (!quiet) printf("%lld ",values[0]);
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}
	if (!quiet) printf("%lld\n",values[0]);

	//	if (values[0]!=i) {
	//   test_fail(  __FILE__, __LINE__, "Result wrong!\n", 0);
	//}

	/***********************************/
	/* Test PAPI_reset()               */
	/***********************************/

	retval = PAPI_reset( EventSet);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_reset() failed\n",retval );
	}

	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_start failed\n",retval );
	}

	retval = PAPI_reset( EventSet);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_reset() failed\n",retval );
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}


	if (!quiet) printf("Testing EXAMPLE_AUTOINC after PAPI_reset(): %lld\n",
				 values[0]);

	if (values[0]!=0) {
	  	   test_fail(  __FILE__, __LINE__, "Result not zero!\n", 0);
	}

	retval = PAPI_cleanup_eventset(EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
	}

	retval = PAPI_destroy_eventset(&EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
	}

	EventSet=PAPI_NULL;


	/***********************************/
	/* Test multiple events            */
	/***********************************/

   	if (!quiet) printf("Testing Multiple Events: ");

   	retval = PAPI_create_eventset( &EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_create_eventset() failed\n", retval );
	}

	retval = PAPI_event_name_to_code("EXAMPLE_CONSTANT", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_CONSTANT not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

   	retval = PAPI_event_name_to_code("EXAMPLE_GLOBAL_AUTOINC", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_GLOBAL_AUTOINC not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

   	retval = PAPI_event_name_to_code("EXAMPLE_ZERO", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_ZERO not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}


	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_start failed\n",retval );
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}

        if (!quiet) {
           for(i=0;i<3;i++) {
              printf("%lld ",values[i]);
	   }
	   printf("\n");
	}

	if (values[0]!=42) {
	   test_fail(  __FILE__, __LINE__, "Result should be 42!\n", 0);
	}

   	if (values[2]!=0) {
	   test_fail(  __FILE__, __LINE__, "Result should be 0!\n", 0);
	}

	retval = PAPI_cleanup_eventset(EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
	}

	retval = PAPI_destroy_eventset(&EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
	}

	EventSet=PAPI_NULL;

	/***********************************/
	/* Test writing to an event        */
	/***********************************/

   	if (!quiet) printf("Testing Write\n");

   	retval = PAPI_create_eventset( &EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_create_eventset() failed\n", retval );
	}

	retval = PAPI_event_name_to_code("EXAMPLE_CONSTANT", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_CONSTANT not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

   	retval = PAPI_event_name_to_code("EXAMPLE_GLOBAL_AUTOINC", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_GLOBAL_AUTOINC not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}

   	retval = PAPI_event_name_to_code("EXAMPLE_ZERO", &code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "EXAMPLE_ZERO not found\n",retval );
	}

	retval = PAPI_add_event( EventSet, code);
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_add_events failed\n", retval );
	}


	retval = PAPI_start( EventSet );
	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_start failed\n",retval );
	}

        retval = PAPI_read ( EventSet, values );
   	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_read failed\n",retval );
	}

        if (!quiet) {
	   printf("Before values: ");
           for(i=0;i<3;i++) {
              printf("%lld ",values[i]);
	   }
	   printf("\n");
	}

        values[0]=100;
        values[1]=200;
        values[2]=300;

        retval = PAPI_write ( EventSet, values );
   	if ( retval != PAPI_OK ) {
	   test_fail( __FILE__, __LINE__,
		      "PAPI_write failed\n",retval );
	}

	retval = PAPI_stop( EventSet, values );
	if ( retval != PAPI_OK ) {
	   test_fail(  __FILE__, __LINE__, "PAPI_stop failed\n", retval);
	}

        if (!quiet) {
	   printf("After values: ");
           for(i=0;i<3;i++) {
              printf("%lld ",values[i]);
	   }
	   printf("\n");
	}


	if (values[0]!=42) {
	   test_fail(  __FILE__, __LINE__, "Result should be 42!\n", 0);
	}

   	if (values[1]!=200) {
	   test_fail(  __FILE__, __LINE__, "Result should be 200!\n", 0);
	}

   	if (values[2]!=0) {
	   test_fail(  __FILE__, __LINE__, "Result should be 0!\n", 0);
	}

	retval = PAPI_cleanup_eventset(EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_cleanup_eventset!\n", retval);
	}

	retval = PAPI_destroy_eventset(&EventSet);
	if (retval != PAPI_OK) {
	   test_fail(  __FILE__, __LINE__, "PAPI_destroy_eventset!\n", retval);
	}

	EventSet=PAPI_NULL;


        /************/
        /* All Done */
        /************/

	if (!quiet) printf("\n");

	test_pass( __FILE__ );

	return 0;
}